This work briefly describes the composition of the lubricating oiland the types of flow
improvers, pointing out the advantages of nano-hybrid pour point depressant and some common
types of nano-hybrid pour point depressant. The author summarizes the experimental instruments
and methods which were commonly used in the study of the mechanism of pour point, pointing
out the factors that affect its effect on the lubricating oil. The mechanism of the action of the pour
point depressant and the viscosity index improvers in lubricating oil are described.
The author describes the preparation, design and application of the environment-friendly pour point
depressant, which helps researchers to study the lubricating oil pour point depressants.
Keywords: Base lubricating oil, flow improvers, mechanism and method, environment-friendly, fuel
combustion, pour point depressants.
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